Four-bend wing-rail track frog



G. D. LUND FOUR-BEND WING RAIL TRACK FROG Filed April 17, 1924 April 21,1925. 1,534,232

Jfiii George 12 L and Afforney Patented Apr. 21, 1925.

UNITED STATES GEORGE D. LUND, 0F PORTLAND, OREGON.

FOUR-BEND WING-RAIL TRACK FROG.

Application filed April 17, 1924. Serial No. 707,124.

To all whom it may concern:

Be it known that I, GEORGE D. LUND, a citizen of the United States, residing at Portland, in the county of Multnomah and the State of Oregon, and having my address at 686 East th St. north, in said city and State, have invented a. new and useful Improvement in Four-Bend Wing-Rail Track Frogs, of which the following is a specification.

My invention relates to railway track frog construction and consists of the novel construction herein shown. It is not necessary for me to saw or cut the rails in order to manufacture a frog of my construction. I have developed a system for the construction of railway frogs of simplified form and of simple construction that enables me to manufacture railroad frogs by my methods without cutting the rail except at g piart of the base and through a part of the The invention consists further in new and novel arrangements of parts to be hereafter described and to be claimed in the claims appended to this specification.

Reference is had to the accompanying drawings in which Fig. 1 is a plan view of one of my frogs in position on the main line track of a railroad. Fig. 2 is an enlarged plan view of the frog crossing only. Fig. 3 is a section View taken on line 3-3 of Fig. 2 looking in the direction indicated by the arrows. Fig. 4 is an enlarged view on the mechanism shown in Fig. 2 with the ball of the rail removed to show the method of form ing the bends of the rail and the means of attaching the two bent rails together. Fig. 5 is an enlarged plan view of the rails forming the frog and made to illustrate the passage of the flange of the wheel across the ball portion of the rail. Fig. 6 is a plane View of one of my frogs made from rails at a different angle of crossing to that shown in Fig. 5.

Similar reference characters refer to similar parts throughout the several views.

1 is the outside rail composing the through, or main line track, and 2 is the rail forming the inside rail of the main line track and across which the frog is to be made for the switch or side track. In Fig. 2, is the bent rail forming the inside rail of the main line track and the inside rail of the branch line track and 4 is the cross over between the inside and outside rail of the main line track and when the rail a is bent as illustrated in Figs. 2 and 4 and as bent, forms the inside rail of the main line track it will thus be seen that in forming one of my frogs the rails are not cut but are bent into desired shape. The ball of the rail being cut to a sufficient depth as at 5 and 6 to permit the flange of the wheel to pass therethru. 7 is a spreader casting attached to and placed between the webs of the rails forming the switch and of the proper shape and angle to form afrog of the desired angle. The spreader casting 1 is (ill held between the webs of the rails to form a tight joint by the bolts 8. A base plate 9 of suflicient size is placed beneath the frog and the frog itself and the plate is held in place by the track spikes 10.

The flat plate 11 is used to reinforce the web of the rail if found desirable. It will thus be seen that I have formed a frog and rail crossing without the cutting of the web at the rail for railway use. I have therefor formed a frog of the greatest possible strength with the least possible amount of work and with the least possible injury to the rails themselves.

Having thus described my invention, I wish to make the following claims,-

1. A four bend wing rail frog comprising a base plate supporting bent rails having the balls of the rail partially cut away to permit the wheel flange to pass therethrough, a casting engaging with the web of the rails to hold the same in alignment, through bolts holding the rails and casting in place, and a fish plate to reinforce the web of the rail.

2. A four bend wing rail track frog comprising bent rails adapted to each other and held in place by bolts with a member therebetween to maintain the desired alignment of the bent rails, a base plate adapted to hold the frog in position and to being spiked in place.

3. A four bend wing rail track frog comprising bent rails secured to each other by bolts with a member therebetween to maintain the desired relationship between the rails when bent, the ball portion of the bent rails adapted to permit the wheel flanges passage thereacross and means for maintaining the track frog in placement.

GEORGE D. LUND. 

